Wrapper and folder.



A. P. HOLDEN.

WRAPPER AND FOLDER.

APPLICATION FILED M10 11, 1913.

Patented J an. 27, 1914.

2 SHEETSSHEBT 1.

' [72 Van [01 zg fl? A. P. HOLDEN.

WRAPPER AND FOLDER.

nrmouron FILED AIIG.11, 1913.

1,085,261. Patented Jan. 27, 1914.

2 SHEETS-SHEET 2.

TED STATES PATENT OFFICE.

ARTHUR PEART HOLDEN, 0F TQRONTO, ONTARIO, CANADL ABSIGNGR TO THE HOLDEN-MORGAN COMEANY, LIMITED, 0! TORONTQ. ONTARIO, CANADA, A

PORATION 0F ONTARIO.

Specification of term: mun.

Patented Jan. 27, 1914.

Application filed August 11, 1913. Serial No. 784,019.

To all whom it may concern:

Be it known that I, ARTHUR PEABT HOLDEN, of the city of T oronto, in the county of York and Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in Wrappers and Folders; and I hereby declare that the following is a full, clear, and exact description of the same.

My invent-ion relates to the formation of the end folds of a wrapper which has been previously formed to a tubular'shape, z. e., conformed to four sides of the article by any suitable mechanical or manual means; and the object of the invention is to so form the end folds that the ends of one wrapper side will completely cover the folds formed b the ends of the other three sides for the e fective sealing of the package ends.

In concurrent applications Serial Nos. 765,616, 776,970 and 7 80,572 various types of end folders have been shown and described; these end folders operating on the principle of exteriorly engaging the ends of one side of a tubular wrapper and folding it against the ends of the article, then entering in teriorly of the wrapper to define the lines along which the remaining folds are to be made and then interiorly engaging the wrapper and tensioning it for the formation of the remaining folds.

In my present application, I employ end folders, operating on substantially the same princi le as those described in the above applications, which after exteriorly engaging the ends of the bottom wrapperside and folding them against the ends of the article, enter interiorly of the remaining sides and define the lines along which the remaining folds are to be made, and interiorly engage the ends of the top wrapper side, other fold ing means then exteriorly engaging the ends of the vertical wrapper sides and folding them inward beneath the top wrapper side so that when the top wrapper side is closed against the package 'ends, it will completely cover the folds formed by the bottom and vertical wrapper sides.

Figure 1, 1s a perspective view of a tubular wrapper with the ends ready for folding; Fig. 2, is a perspective view of the wrapper shown in F i 1, with the ends of the bottom side folde against the ends of the article; Fig. 3, is a perspective view of the same wrapper showing the ends of the vertical sides folded inward beneath the ends of the top side; Fig. 4, is a perspective view showing the ends of thetop side closed against the packa e ends; Fig. 5, is a side elevation of the folder with the parts in their normal position; Fig. 6, is an end elevation of the folder with the parts in their operative position.

Like characters of reference refer to like parts throughout the specification and drawm 5.

he tubular wrapper shown in F i 1 consists of a bottom side a, a top si e b and two vertical sides 0. This tubular wrapper is preferably conformed to four sides of the article by any suitable mechanical or manual means, satisfactory mechanical means for this purpose being shown and described in applications for Letters Patent of the United States, Serial Nos. 776,970 and 780,572.

When the wrapper has been conformed to a tubular shape, around the article, as shown in Fig. 1, end folders similar to those shown in Figs. 5 and 6, exteriorly engage the ends a of the bottom side a. and fold them against the ends of the article contained within the wrapper and at the same time tuck in the lower ha ves of the ends 6' of the vertical sides 0 and form the tubular wrapper to the shape shown in Fi 2. The end folders then enter interiorly o the wrapper to define the vertical lines 1 along which the ends c of the vertical sides 0 are to be infolded and to define the horizontal lines 2 along which the ends I) of the top side I) are to be down-folded.

The folder shown in Figs. 5 and (i consists of a fold-forming element (Z provided with a bracket Ii vertically slidable on guide rods J and actuated by an operable lever (i The folder (1 moves under the influence of the lever (i into engagement with the end a of the bottom side a and by exteriorly engaging the end of the bottom side folds it against the end of the article. Forming part of the folder (I are two arms 0 having at their upper ends bosses p for the hinge pins 1 which oscillatingly connect the arms 1' to the arms 0. Forming part of the arms 1' is a moving folding m'ember (P which when the folder parts are in their contracted position lies in a parallel plane with the foldforming element (Z and which when the folder parts are expanded occupies a position at substantially right angles to the foldforming element cl as shown in Fig. 6. One of the hinge pins 9 is provided with a pinion t engaged by a suitably operated rack u whichwhen moved in one direction closes the folder part cl against the fold-forming element d and when moved in the other direction brings the folder part d into a position at right angles to said fold-forming element. 4

Pivoted to the arms 0' are folders '2; provided with cranks w having toothed segments w actuated by suitable operating mechanism :12. When the folders are raised by the operatinglever 03 the fold-forming elements (Z. exteriorly engage and fold the ends a of the side a. The fold-forming elements d together with the folder parts (i then enter interiorly of the wrapper to define the lines along which the vertical sides are to be folded. The rack u is then actuated to rotate the pinion t and'move the folder parts 03 into a position at substane tially right angles to the fold-forming elements d whereby the folder parts d will interiorly engage and tension the top wrapper side and define the lines along which it is to be down-folded and the vertical sides 0 in-folded' The actuating mechanism :1; is then operated to move the folders inwardly across the fold formingelement d, the inward movement of the folders 1; exteriorly engagin the ends 0 of the'vertical sides a and in olding them as shown in Fig. 3. During the infolding of the ends 0 of the vertical sides 0 the movement of the rack 14 is reversed which has the effect of lowering the folder part d into a plane parallel with the fold-forming element d and close the end 6' against the package ends. The folding inward of the ends 0 of the vertical sides 0 permits the ends I) of the top side 6 to retain their original shape which as shown in Figs. 1, 2 and 3, correspond in dimensions with the package ends. Suitable means such as the pressers shown in the above applications #776,974 and #780,572 are then employed to press the ends 6 against the folded ends of the remaining sides until sealed thereto. A fold of this character is advantageous for many purposes, and particularly so when the package ends are to be sealed, as it is possible to gum the ends I) of the top side b and press them against the package ends until they adhere thereto, there being in a case of that kind, only a omparatively small quan tity of gum used. It is also possible to secure the package ends by means of labels adhering to the outer surfaces of the ends I) of the top side Z) and to the outer surface of the bottom side a or vertical sides 0, and when waxed paper is used, it is possible to heat the waxed ends 6' of the top sideb and press them against the folds formed by the other sides until they adhere together and it is also possible by the employment of a relatively small squirt of wax to insure the adhesion of the ends I) to the package ends.

When the rack to has lowered the folder part (2* into a plane iitrallel with the foldforming element d, t e end I) of the top wrapper side lies flat against the package end and the operating lever 03 is then actuated to lower the end folder out of engagement with the wrapper. This is effected by the peculiar hinge construction of the fold-forming element d and folder part (l which avoids any direct connection between the folder part and fold-forming element, so that when they are in parallel planes there will be a gap at their inner ends to permit of each part being separately withdrawn from the folded wrapper end. During the formation of the folds, the fold-forming element d occupies a position between the outer side of the folded wra per end a and the inner side of the infol ed wrapper ends 0, and the folder part d occupies a position between the wrapper end I) and the infolded wrapper ends 0. To maintain the folded formation of the wrapper ends during the return of the folder to its starting position the arms 0 and r are spaced from the foldforming element d and folder part a? so that they will during the formation of the end folds occupy a position entirely clear of the wrapper to obviate any possibility of coming into contact therewith when the fold-forming element 0? and folder part at are being withdrawn from the folds;

Having thus fully described the nature of my invention, what I claim as new and desire to secure by Letters Patent, is

1. A folder, for closing the ends of a tubular wrapper, comprising a fold-forming element and actuating means therefor, whereby it will exteriorly'engage and fold the end of one side of the tubular wrapper and then enter interiorly of the remaining sides to define the lines along which they are to be folded, an oscillating part in a plane parallel with the said fold-forming element when the folderenters interiorly of the wrapper, and means actuating the oscillating part whereby it will assume a position in angular relation to the fold-forming element and interiorly engage one side of the wrapper and tension it.

2. A folder, for closing the ends of a-tubular wrapper, comprising a fold-forming element and actuating means therefor, whereby it will exteriorly engage and fold the end of one side of the tubular wrapper and then enter interiorly of the remaining sides to define the lines along which they are to be folded, an oscillating part in a plane parallel With the said fold-forming element posed wrapper sides and fold them inward When the folder enters interiorly of the beneath the side tensioned by said oscil- 10 wrapper, means actuating the oscillating lating part.

part whereby it' will assume a position in Toronto, July 29th, 1913.

angular relation to the fold-forming element- ARTHUR PEART HOLDEN. and interiorly engage one side of the Wrap- Signed in the presence of per and tension it, and means cooperating C.-H. RICHES,

with said folder to exteriorly engage two op- HERBERT B. SOMERVILLE. 

